SY 261 then CZ 436 at O'Hare
Minneapolis → Chicago → Shanghai
Timetable, Chicago time
18:25SY 261 from Minneapolis at the gate
00:45CZ 436 to Shanghai leaves the gate
6 h 20 apart on the timetable, overnight
The last days
SY 261 and CZ 436 weren’t both flown 15 min to 12 h apart in the last 21 days.
Statistics from past flights, not live flight information. Always check times and your connection with your airline, and don’t base travel or booking decisions on these numbers.